import sys
print(sys.version)

names = ['zhangsan','lisi','','wangwu','zhaoliu','admin','tom']
for name in names:
    if name == 'admin':
        print('Hello admin, would you like to see a status report?')
    elif name == '':
        print('We need to find some users!')
    else:
        print('Hello Eric, thank you for logging in again')

current_users = ['zhangsan','wangwu','zhaoliu','admin','tom']
new_users  = ['lisi','dafei','admin','tom','jack']

print(new_users[0:2])

